<template>
  <li @mousemove="isShow = true" @mouseleave="isShow = false">
    <label>
      <input type="checkbox" v-model="update" />
      <span :class="todo.isDone ? 'active' : ''">{{ todo.todoName }}</span>
    </label>
    <button class="btn btn-danger" @click="del" v-show="isShow">删除</button>
  </li>
</template>

<script>
export default {
  name: "TodoItem",
  data() {
    return {
      isShow: false,
    };
  },
  props: {
    todo: Object,
    updateone: Function,
    deleteOne: Function,
  },
  computed: {
    update: {
      get() {
        return this.todo.isDone;
      },
      set() {
        let { id } = this.todo;
        this.updateone(id);
      },
    },
  },
  methods: {
    del() {
      let { id } = this.todo;
      console.log(id);
      this.deleteOne(id);
    },
  },
};
</script>

<style>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}
li label span.active {
  color: #ccc;
  text-decoration: line-through;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}
</style>